1-5
87519804 NA Issued 11-06 Bur
CHAPTER 1 - DIAGNOSTICS
ENGINE REPAIR MANUAL
ENGINE OVERHEATS
Coolant level correct.
No
Check for leaks, repair leaks and refill to
proper level.
Yes
Fan working properly.
No
Replace.
Yes
Drive belts in serviceable.
No
Replace.
Yes
Water Pump in working properly.
No
Check for leaks, bad bearing, overhaul or
replace.
Yes
Thermostat working properly.
No
Replace.
Yes
Radiator plugged or leaking.
Yes
Wash down, repair leaks and flush out
radiator. If necessary replace radiator.
No
Oil in radiator fluid.
Yes
Replace oil cooler.
No
Air to Air Cooler and hoses leaking.
Yes
Clean or replace faulty parts.
No
Openings for coolant flow within the cylinder
head and engine block plugged.
Yes
Clean thoroughly.
No
Valve clearance correct.
No
Check and adjust for correct valve
clearance.
Yes
Cylinder head gasket in leaking.
Yes
Replace.
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